Create aliases with the Linux command line to make commands easier to remember.

Posted: April 20, 2016. At: 1:08 PM. This was 2 years ago. Post ID: 8888
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Creating an alias for bash makes remembering a command easier. This is how longer commands may be simplified.

Here is an example.

[jason@darknet:~] alias lseasy='ls -lAhF'

This is the output.

[jason@darknet:~/Videos] lseasy                                     
total 4.8G
-rw-r--r-- 1 jason jason   18 Mar 24 13:34 authrootseq.txt
-rw-r--r-- 1 jason jason  23K Mar 24 13:55 heap2.htm
-rw-r--r-- 1 jason jason  893 Mar 24 13:48 heap.html
-rw-r--r-- 1 jason jason  23K Mar 24 13:54 java.js
-rw------- 1 jason jason 624M Aug 17  2013 Microsoft.Windows.XP.Professional.SP3.x86.Integrated.August.2013.iso
-rw------- 1 jason jason 2.3G Jan 17 15:42 Pixels.2015.mp4
-rw------- 1 jason jason 331M Mar 17  2015 s13l43-the-subnet-maskmp4.mp4
-rw------- 1 jason jason 371M Mar 17  2015 s13l44-the-diagram-we-use-to-subnet-how-to-use-the-diagram-for-our-needsmp4.mp4
-rw------- 1 jason jason 180M Mar 17  2015 s13l45-class-full-subnettingmp4.mp4
-rw------- 1 jason jason 458M Mar 17  2015 s13l46-class-less-subnettingmp4.mp4
-rw------- 1 jason jason 413M Mar 17  2015 s13l47-route-summarizationmp4.mp4
-rw------- 1 jason jason 174M Mar 17  2015 s13l48-wildcard-maskingmp4.mp4
-rw-r--r-- 1 jason jason   33 Mar 24 09:40 windows-sp3-xp-key.txt

Run the alias command by itself to get a listing of the available aliases on your system for your current user.

jason@darknet:~/Videos] alias 
lseasy='ls -lAhF'
run-help=man
which-command=whence

It is also possible to specify parameters in an alias command.

jason@darknet:~/Videos] alias letc='ls -al /etc'

This of course works a treat.

[jason@darknet:~/Videos] letc                         
total 32
drwxr-xr-x   2 root root  4096 Apr  6 15:56 .
drwxr-xr-x 193 root root 12288 Apr 20 09:58 ..
-rw-r--r--   1 root root   220 Nov 13  2014 .bash_logout
-rw-r--r--   1 root root  3391 Apr  6 15:56 .bashrc
-rw-r--r--   1 root root  3526 Dec  2 20:34 .bashrc.original
-rw-r--r--   1 root root   675 Nov 13  2014 .profile

Aliases are a very useful Linux tool, making long and complex one-liners easy to use and remember.

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